She was given to the First Lieutenant William R. Terry when she was only 4 weeks old.
Terry raised Sallie with the men of the regiment. She knew the drum roll announcing revielle and followed the men on marches into the battlefield.
In the spring of 1863, Sallie marched with the soldiers in her regiment, and Abraham Lincoln sat reviewing the Union Army. He raised his hat to Sallie.
When at Gettysburg, Sallie was separated from the 11th Infantry men, and three days later, they found her guarding bodies of dead and wounded soldiers.
In 1865, at Hatcher’s Run, Sallie was struck by a bullet to the head and was instantly killed. She was buried on the battlefield while under heavy enemy fire.
In 1890, a monument was placed in appreciation of her loyalty and devotion to her infantry. Sallie’s monument now stands in Gettysburg in front of a monument that commemorates the 11th Pennsylvania Infantry.